Glazed metal sash construction



AP 27, 1943. H.B|ANCO GLAZED METAL SASH CONSTRUCTION Filed Sept. 1'1,1941 Patented Apr. 27, 1943 UNITED GLAZED METAL SASH CONSTRUCTION HenryBianco, Baltimore, Md.,

assignor to Truscon Steel Company, Youngstown, Ohio, a

corporation of Michigan Application September 11, 1941, Serial No.410,463

(Cl. 18S-76) 1 Claim.

This invention relates to a novel construction and arrangement of'glazing strips for holding glass panes or panels in metal sash.

One of the objects of the invention is to provide a simple and practicalconstruction wherein the metal sash frame is so constructed as toreceive a series of outer glazing strip members which may be locked inposition by deforming or indenting one of the flanges or elementsthereof at spaced points by means of a center punch or the like, therebyto hold the outer strips in place, While the intermediate strips whichcooperate with the muntin bars also have a novel interlocking engagementwith preformed holding or keeper elements formed at appropriatepositions on the bars.

A further object of the invention is to provide glazing strips which maybe readily and easily applied and which may likewise be readily removedif it becomes necessary to reglaze portions of the sash.

With the above and other objects in view which will more readily appearas the nature of the invention is understood, the same consists of thenovel construction, combination and arrangement of parts hereinaftermore fully described, illustrated and claimed.

A preferred and practical embodiment of the invention is shown in theaccompanying drawing, in which:

Figure 1 is a plan view of a sash including glazing strips assembledthereto in accordance with the present invention.

Fig. 2 is a Vertical sectional view taken on the line 2-2 of Figl.

Fig. 3 is an enlarged detail sectional perspective view of a portion ofone of the window frame bars and the glazing strip therefor.

Fig. 4 is a detail sectional perspective view of one of the muntin barsshowing the keeper means for the intermediate glazing strips.

Similar reference characters designate corresponding parts throughoutthe several gures of the drawing.

According to the embodiment of the invention shown in the drawing, thesame includes in its organization a sash frame, designated generally asA, having a plurality of angularly arranged muntin bars B arrangedwithin the frame opening and cooperating with the frame, as willpresently appear, to support the glass panes or panels C. The said glasspanes or panels are preferably seated or sealed in a suitable masticcomposition C and are held in position by a Cil series of outer glazingstrips D and a plurality of intermediate glazing strips E.

' Referring first to the sash frame A, it will be observed that the samecomprises a plurality of side frame members which areformed to includethe oppositely extending flanges I and 2 having therebetween theintermediate oset stripanchoring flange 3. As will be apparent from Fig.2, the flanges l and 2 are vertically disaligned to provide a shoulderat the outer face of -the sash frame for tting in the Window frameproper, While the laterally offset strip-anchoring fiange 3 is formed byfolding a portion of the metal between the flanges I and 2 so that theoffset flange itself includes two thicknesses of the metal from whichthe side frame is formed. The frames at all sides of the sash are of thesame cross-sectional shape shown in Fig. 2 and answer to the descriptiongiven above.

The portion of the sash frame between the inner edges of the side framesis provided with muntin bars B which are arranged in angular relation toform panel or pane receiving seats. The said muntin bars B arepreferably of substantially T-shape in cross-section, with the head 4 ofthe T facing outwardly and the webs 5 thereof projecting inwardly, thatis to the room face of the window. The web portions 5 of the muntin barsare preferably formed at spaced intervals with pressed-out or struck-uplug portions 6 which provide glazing strip abutments or shoulders, asWill presently appear.

The outer glazing strips D are preferably made from any thin metalsuitable for the purpose and are of a cross-sectional formation toprovide the spaced, relatively yielding, or resilient, walls 1 and 8 andthe covering wall 9. 'Ihe walls 1 and 8 are intended to telescopicallyand frictionally fit over and engage the offset flange 3 of the sideframe forming members A, and when fully positioned thereon the wall 'lmay be subjected to deformation at suitable spaced intervals by the aidof a center punch or the like, thereby to provide mating indentations I0in both the glazing strip and the sash frame which will preventaccidental displacement of .Y the outer glazing strips in the directionof their application.

The outer glazing strips D are preferably coextensive in length with theoffset flanges 3 of the side frames to which they are applied. As willbe observed from Fig. 1, the upper and lower glazing strips D are ofgreater length than the outer glazing strips at the sides of the sashframe, although it will be readily understood that this condition may bereversed without affecting the application of the strips to the sashframe.

Intermediate glazing strips E are preferably of substantially channelshape in cross-section and the outer edges of the walls thereof formingthe sides of the channel are preferably turned inwardly to form anges Iland l2, the former constituting a keeper ange for cooperation with theshoulders provided by the offset lugs 6, or their equivalent, on themuntin bars. The effect of inwardly anging the side Walls of theintermediate glazing strips E is to provide an opening between the edgesof the anges Il and l2 which permits the iitting of the strips E overthe webs 5 of the muntin bars so as to clear the lugs 6 duringapplication. Then, by transversely shifting the entire strip in thedirection in which the flange Il extends, the intermediate strips willbecome interlocked or interengaged With the muntin bars.

It will, of course, be understood that when the glass panels or panes Care fitted in the openings provided or formed by the side frames andmuntin bars, suitable mastic or putty is provided to seal the panesrelative to their metallic parts, the said sealing means also beingincluded Within and covered by the glazing strips D and E. If it becomesnecessary to reglaze a portion of the sash, the outer glazing strips Dmay be disengaged from the oiset flanges 3 of the side frames by liftingthe punched in portions of the Walls 'l out of the indentations formedin the Iianges 3 with the aid of a suitable tool, and likewise theintermediate glazing strips E may be removed by lifting or pushing thesame transversely so as to bring the keeper anges Il clear of the lugs 6on the muntin bars.

I claim:

In a metal sash structure, a frame, a pane, said frame including aportion overlapping one face of said pane adjacent to one edge thereof,a flange extending laterally from said frame across said edge of saidpane, a pane retaining element lincluding a portion of U-shape in crosssection engaged over said ange, a ange extending inwardly from saidportion of U-shape in cross section into overlapping relationship to theother face of said pane adjacent to said edge thereof, said portion ofU-shape in cross section including side walls and a web joining saidside Walls, the flange extending inwardly from said portion of U-shapein cross section having its outer face disposed coplanar with the outerface of said web, and means detachably retaining said strip on thelateral ange of said frame, said pane retaining element being formedfrom a strip of sheet metal having in cross section, its outer marginalportion bent laterally and its medial portion crimped into a double-wallformation extending laterallyA in the same direction as said outermarginal portion to provide the outer and the inner walls, respec- 0tively, of said portions of U-shape in cross section.

HENRY BIANCO.

